Show/Hide lockscreen camera and searchlight buttons (2 of 2)

I would like this to go along with my completely naked NX bar

Change-Id: Ife2863098f429a7b198ec81204bb60d9c95076ef
Add double tap action category and misc needed cleanup (2 of 2)

PS2: Add long press timeout configuration

Change-Id: I085d4289506bce01b7f53f8de25904e8a31b28bd
Persistent menu soft key (2 of 2)

Shows all the time, except in lockscreen

Note: The navigation layout will be changing soon. In the meantime
      this is the best spot I could find

Change-Id: I927c316ed22e8388829b8823da7e3892efd902b2